Engineering topics

Krein, G

Publications and source records attributed to Krein, G.

3 records

DOE OSTI2011

J/{Psi}-nuclear bound states

J/{Psi}-nuclear bound state energies are calculated for a range of nuclei by solving the Proca (Klein-Gordon) equation. Critical input for the calculations, namely the medium-modified D and D* meson masses, as well as the nucleon density distributions in nuclei, are obtained from the quark-meson coupling model. The attractive potential originates from the D and D* meson loops in the J/{Psi} self-energy in the nuclear medium. It appears that J/{Psi}-nuclear bound states should produce a clear experimental signature provided that the J/{Psi} meson is produced in recoilless kinematics.

73 NUCLEAR PHYSICS AND RADIATION PHYSICS↗

DOE OSTI2010

Charmonium and D mesons in hadronic matter

We discuss two aspects of charmonium in medium. First, we present results of a recent study that compares the phenomenology of charmonium spectroscopy using smooth and sudden string breaking potentials. Next, we present results of a study that explores the possibility that J/{Psi} might be bound in a large nucleus through the excitation of a color singlet intermediate states of D and D* mesons with density masses.

73 NUCLEAR PHYSICS AND RADIATION PHYSICS↗

DOE OSTI2010

Charmed matter

In the near future experiments will be able to produce charmed hadrons almost at rest in the interior of an atomic nucleus. One of the most exciting perspectives is the possibility of studying charmonium in a dense medium. In the present communication we present results of a study that explores the possibility that J/{Psi} might be bound in a large nucleus through the excitation of intermediate states of D and D* mesons. We also present results of a recent prediction for the production of {Lambda}(bar sign){sub c}{sup -{Lambda}}{sub c}{sup +} in proton-antiproton annihilation experiments.

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗